| 摘要 |
PROBLEM TO BE SOLVED: To reduce influence of noise as much as possible for obtaining an output voltage of an inverter circuit. SOLUTION: Voltages are obtained from an AC voltage output terminal in one choke coil side and from a load side terminal in the other choke coil side in regard to a couple of choke coils provided in the direction to an output side from a couple of AC voltage output terminals of the inverter circuit and these voltages obtained are then supplied to a differential amplifier. |
